William linton



' TED STATES PATENT OE* WILLIAM LINTON, OF BALTIMORE, MARYLAND, ASSIGNOR TO JOHNVJONES, OF SAME PLACE.

MACHINE FOR MAKING CLAY PIPES.

Specification of Letters Patent No. 25,233, dated August 23, 1859.

To a-ZZ whom it may concern:

Be it known that I, VILLIAM LIN'roN, of the city of Baltimore, in the State of Maryland, have invented a new and useful Machine for Making in Continuous Lengths a Tube of Different Sizes of Clay or other Plastic Material; and I hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the anneXed drawing, making a part of this specification.

The machine as shown is attached to the discharging' end of any plastic pipe machine andthe material driven through the openings by means of piston or any other device.

The plate A has an opening B over which the two jaws C, D, move toward each other by means of lever or otherwise and meet at the center. The core mandrel E has two sizes, the larger F corresponding to the opening B in the die plate A and the smaller size E corresponding with the opening Gr in the jaws C, D. In use the jaws are closed and the material forced through t-he small opening Gr and when the tube has attained a suflicient lengt-h, the jaws C, D, are thrown open and the tube continued through the opening B of a larger size.

In the drawing my improvement is represented single, but it is obvious that several of my improved devices may be applied to a single plastic machine consisting of a suitable receptacle for the material and a plunger or piston operated in the usual manner.

I am aware that machines have been made for molding collars or sockets, in limited lengths of a size larger than the main pipe. The method of their working is to support a core pin for the colla-r or socket, against the core of the pipe and by means of levers or otherwise, close around this, a pair of molds the small end of'which molds corresponds to the opening in the pipe die. The space all around and between the molds and the core pin, is of the required size and thickness of the collar or socket. When so arranged the material is forced from the press until the mold is filled, when the pressure is removed, the molds thrown open, and the core pin removed, leaving the core for the pipe, when the pressure is again applied and the operation continued. My machine differs from these in not using` a mold which requires the machine to stop to enable the workman to remove the larger core or -core pin, it being stationary. In mine the pipe may be formed of both sizes by a continuous operation, and the change from the small to the large size effected by opening the jaws surrounding (at a suitable distance for the thickness of the pipe) the small part of the core pin.

The machine referred to, molds the collars or sockets, before the pipes are made and requires the arranging and removal of the large core pin upon the molding of each collar, and its operations are confined to limited lengths, whereas, my device forms the small pipe first as already described, and of any required length, and the large pipe last7 also of any required length.

My arrangement as described facilitates the operation by removing the necessity of adjusting and removing the core pin, and improves the operation by not confining either sized pipe to a limited length as by the ordinary molding apparatus.

I do not claim the manufacture of pipe of two sizes, as various devices of molds have been used for that purpose, but

IVhat I claim as my invention and desire to secure by LettersPatent is- The two sized permanent core or mandrel in combination with the fixed die A and adjustable jaws C D constructed, arranged and operating in the manner described for the purpose specified.

WVM. LINTON. Vitnesses:

WVM. I-I. FLINT, WM. T. ORTTEN. 

